update_post_parent_caches()

update_post_parent_caches( WP_Post[] $posts )

function update_post_parent_caches( $posts ) {
	$parent_ids = wp_list_pluck( $posts, 'post_parent' );
	$parent_ids = array_map( 'absint', $parent_ids );
	$parent_ids = array_unique( array_filter( $parent_ids ) );

	if ( ! empty( $parent_ids ) ) {
		_prime_post_caches( $parent_ids, false );
	}
}